CDN77 is a content delivery network (CDN).

LiteSpeed is a high-scalability web server.

jQuery CDN is a way to include jQuery in your website without actually downloading and keeping it your website's folder.

jQuery is a JavaScript library which is a free, open-source software designed to simplify HTML DOM tree traversal and manipulation, as well as event handling, CSS animation, and Ajax.

SweetAlert is a JavaScript library that provides alternative alert and modal dialog boxes for web applications, with customisable features, aiming to improve the user interface of the default browser dialogs.

OWL Carousel is an enabled jQuery plugin that lets you create responsive carousel sliders.

Unpkg is a content delivery network for everything on npm.

Font Awesome is a font and icon toolkit based on CSS and Less.

BootstrapCDN is a powerful and reliable Content Delivery Network (CDN) that delivers static resources, including CSS, JavaScript, and font files, for the widely-used Bootstrap framework. By leveraging multiple server locations worldwide, BootstrapCDN accelerates website loading times, ensuring a smooth and visually appealing user experience. Additionally, it ensures website compatibility with various devices and browsers. The service reduces bandwidth usage and server load, improving web performance for developers and end-users alike.

Bootstrap is a free and open-source CSS framework directed at responsive, mobile-first front-end web development. It contains CSS and JavaScript-based design templates for typography, forms, buttons, navigation, and other interface components.

YouTube is a video sharing service where users can create their own profile, upload videos, watch, like and comment on other videos.

WebSocket is a communication protocol that provides full-duplex communication channels over a single, long-lived connection, enabling interactive communication between web browsers and servers.

Cloudflare is a web-infrastructure and website-security company, providing content-delivery-network services, DDoS mitigation, Internet security, and distributed domain-name-server services.

Amazon CloudFront is a fast content delivery network (CDN) service that securely delivers data, videos, applications, and APIs to customers globally with low latency, high transfer speeds.

Amazon Web Services (AWS) is a comprehensive cloud services platform offering compute power, database storage, content delivery and other functionality.

Tengine is a web server which is based on the Nginx HTTP server.

Amazon S3 or Amazon Simple Storage Service is a service offered by Amazon Web Services (AWS) that provides object storage through a web service interface.